Category: Health

  • Zika virus directly infects brain cells and evades immune system detection, study shows

    {The mosquito-borne Zika virus linked to microcephaly and other neurological problems in newborns of affected mothers directly infects the brain progenitor cells destined to become neurons, researchers report in a new study.}

    The mosquito-borne Zika virus linked to microcephaly and other neurological problems in newborns of affected mothers directly infects the brain progenitor cells destined to become neurons, UT Southwestern Medical Center researchers report in a study published online in Cell Reports.

    The team of researchers used a strain of Zika currently impacting the Americas, and found that the virus infects about 20 percent of cells on average, evades immune system detection, and continues to replicate for weeks.

    “The cellular system we studied mirrors what pathologists are finding in the brain tissue of affected infants and will be valuable for further understanding how Zika causes severe brain-related problems. The system may also serve as a platform for testing new therapies targeting the virus,” said Dr. John Schoggins, Assistant Professor of Microbiology at UT Southwestern and senior author of the study.

    Zika can be spread by infected mosquitos or through sexual intercourse. In adults, the symptoms are generally mild and include fever, rash, joint pain, and red eyes. However, Zika virus can cause a serious birth defect called microcephaly, and other severe neurological effects such as eye problems, hearing loss, and impaired growth in infants born to women who contracted the virus when pregnant, according to the Centers for Disease Control and Prevention (CDC).

    The CDC’s website lists a series of unanswered questions about the virus that the World Health Organization (WHO) has declared a public health emergency of international concern. The unanswered questions include when during pregnancy the infection may harm the fetus and how the virus affects individual pregnancies.

    “There was a suggestion that the detrimental effects of the virus might be linked to its ability to infect brain cells, specifically the progenitor cells that give rise to neurons,” said Dr. Schoggins, a Nancy Cain and Jeffrey A. Marcus Scholar in Medical Research, in Honor of Dr. Bill S. Vowell.

    “We showed that neural progenitors can be infected by a strain of Zika virus that is currently infecting people in the Americas,” Dr. Schoggins said. “We found that the virus kills some neural progenitor cells, but not all. Other cells survive the infection, and surprisingly, continue to replicate the virus for many weeks. In addition, it appears that Zika virus does not stimulate much of an immune response.”

    Zika can be spread by infected mosquitos or through sexual intercourse. In adults, the symptoms are generally mild and include fever, rash, joint pain, and red eyes. However, Zika virus can cause a serious birth defect called microcephaly, and other severe neurological effects such as eye problems, hearing loss, and impaired growth in infants born to women who contracted the virus when pregnant.
  • Eating fruits during pregnancy is good for your unborn child

    {Eating fruits come with a lot of health benefits, and it isn’t just good for your health as a woman, it’s also good for your unborn child.}

    A Canadian study has found that women who ate more fruit during pregnancy had children with higher IQs at one year old.

    The researchers from the University of Alberta found that one of the factors contributing to improved cognitive development in children was the amount of fruit their mothers ate during pregnancy.

    The scientists studied 688 one-year-old babies, who were controlled for factors otherwise affecting their learning and development, such as family income and parental education.

    They found that the mothers who ate six to seven portions of fruit per day — including juices — had children with IQs six or seven points higher on the standard scale at one year old

    According to Dr Mandhane, the study’s senior author: “We know that the longer a child is in the womb, the further they develop — and having one more serving of fruit per day in a mother’s diet provides her baby with the same benefit as being born a whole week later,”

    However, the researchers warn pregnant women against eating too much of fruit which contains fructose, as this can lead to complications such as gestational diabetes and high birthweight.

    These initial findings will be followed up by more research, investigating whether the positive effects of fruit consumption on cognitive development persist in children over time. The scientists also plan to study the impact of fruit consumption on cognitive functions such as planning, organizing and working memory.

    The research was published in the journal EbioMedicine.

  • Good news in the fight against breast cancer

    {Researchers at Duke University have devised a method of flushing breast cancer cells out of bone marrow in mice, making them easier to eradicate.}

    Previous research suggests bone marrow may offer a haven from chemotherapy, meaning breast cancer cells can lie dormant for an extended period. Up to now, little has been known about how metastatic breast cancer cells enter and hide in bones.

    Using real-time microscopy techniques, the Duke University team tracked the migration of breast cancer cells through the bone marrow of mice and identified E-selectin, the protein that allows cancer cells to enter the bone marrow, and CXCR4, the protein that anchors them to the bone and allows the malignant cells to hide.

    Dorothy Sipkins, an associate professor at Duke, said: “Studies have found that breast cancer can be caught early and treated, and patients can have no signs of disease. Then five, 10 or even 15 years later, a patient can relapse.

    “We also identified an important mechanism that allows breast cancer cells to remain anchored in the bone marrow.

    “In the mouse, our findings could offer new strategies to intervene at the molecular level before dormant cells can take hold and cause relapse.”

    The research was published in the journal Science Translational Medicine, and has prompted hopes that one of the most devastating characteristics of breast cancer can be prevented.

  • Blood transfusion meet opens in Kigali, calls for more efforts in availing blood to patients

    {The director of Africa Society for Blood Transfusion (AfSBT), Jean Baptiste Tapco has expressed concern over inadequate knowledge of health care service providers and improper performance of some institutions which may result in transfusing contaminated blood to the patients.}

    He noted this yesterday during the beginning of the 8th summit of AfSBT.

    “Sometimes blood transferred to patients in need is little or blood bankers’ knowledge is inadequate which results into patients’ deaths. This adds to malfunction of some institutions in charge of blood distribution that people may receive blood containing virus causing hepatitis or AIDS,” he said.

    Tapco noted that Rwanda has demonstrated that progress can be attained and finds that countries should learn from Rwanda’s achievements.

    “Rwanda has shown the possibility of reaching development through implementing good policies. Everyone should learn from it, since we are here to share ideas in blood donation and learn from excellent achievements of this country,” he said.

    The Minister of Health, Dr.Agnes Binagwaho said that people from Africa and Rwanda need to get pure blood and make sure it is affordable.

    “This is the real time to study well the issue since our people need well screened blood with no HIV/AIDS or Hepatitis contamination among others.,” she said.

    Dr. Binagwaho said that the four-day meeting held in Kigali is seeking how to collect, properly keep and distribute blood.

    The Minister of Health, Dr.Agnes Binagwaho
  • 7 causes of miscarriage every woman should know

    {Pregnancy is an important stage in a woman’s life, and it’s also important to know vital information about the subject.}

    Miscarriage in women also has causes and it’s something every woman and her partner should know.

    {{1. THE SPERM
    }}

    A lot of people believe that miscarriage is primarily the woman’s fault, but this isn’t so. Sperm DNA fragmentation is also a huge cause of miscarriage; it happens when strands of sperm DNA are broken and unable to deliver DNA to the eggs.

    {{2. HORMONES}}

    Hormones could also lead to miscarriage; progesterone, luteal phase defect, hypothyroidism and diabetes are some hormonal problems that could cause miscarriage.

    {{3. GENETIC ABNORMALITIES}}

    For majority of miscarriages that happen, genetic abnormalities are a major reason. According to the American Society for Reproductive Medicine (ASRM), for approximately 5 percent of women who have recurrent loss, the reason in 50 percent of those cases isn’t clear.

    Chromosomal abnormalities like cystic fibrosis, Down syndrome and Turner syndrome could cause miscarriage.

    {{4. INFECTIONS}}

    Infections could also cause miscarriage. Mycoplasma infections that happen in the lining of the uterus can lead to miscarriage.

    {{5. HARD DRUGS, SMOKING AND ALCOHOL}}

    Using hard drugs, smoking and alcohol can cause miscarriage. According to a study published in the Fertility and Sterility journal, women exposed to high levels of toxic chemicals are 83 percent more likely to have a miscarriage than women with lower levels.

    {{6. OBESITY}}

    Research has found that women who are obese have an increased risk of miscarriage.

    {{7. ABNORMALITIES OF THE UTERUS}}

    This is another common cause of miscarriage in pregnant women. Septum for example, is an extra piece of tissue on the uterus that doesn’t have the same type of blood supply as the rest of the uterus; this could cause miscarriage.

    Fibroid can also cause miscarriage.

  • 4 ways you damage your memory without even knowing

    {Almost everyone knows memory loss can be caused by a concussion or a brain tumour but only few actually know stress can also cause memory loss.}

    Below are 4 ways you damage your memory without even knowing it

    {{1. STRESS
    }}

    A study published in the Journal of Neuroscience found that escalated levels of the stress hormone cortisol may lead to short-term memory loss.

    {{2. PRESCRIPTION DRUGS}}

    According to Medical Daily, prescription sleeping pills can lead to memory loss. A drug-induced sleep isn’t the same as a true sleep and it deprives one of the benefits of sleep, thereby impacting your ability to recall.

    {{3. VITAMIN B12 DEFICIENCY}}

    Vitamin B12 deficiency can lead to memory loss and even dementia. Vitamin B12 is an important vitamin your body needs and you can get vitamin B 12 by eating meat, eggs, poultry and dairy products.

    {{4. MIGRAINE}}

    Using data from the National Health Insurance Research database (NHIRD) in Taiwan, researchers were able to link migraine with a future higher risk of dementia. Dementia is a neurodegenerative disease characterized by slow progressive memory loss and cognitive dysfunction.

  • 6 causes of irregular period

    {The normal menstrual cycle ranges from 21 days to 35 days. A period is considered irregular if it occurs less than 21 days or more than 35 days apart.}

    So if the number of days between stopping and starting your period is significantly different each month, your period is irregular.

    Below are 6 causes of irregular period

    {{ 1. CHRONIC STRESS}}

    Stress can affect a woman’s hormone balance which can cause irregular periods. Seek ways to reduce stress and relax better.

    {{2. BIRTH CONTROL PILLS}}

    Going on and off birth control pills can affect menstruation. Going on a pill can cause a woman to miss periods or have less or more frequent periods. Some women have irregular or missed periods for up to six months after discontinuing birth control pills.

    {{3. EXTREME EXERCISE}}

    Exercise is good for everyone as it helps keep us healthy but extreme exercise can cause women to have irregular periods.

    {{4. GAINING OR LOSING A SIGNIFICANT AMOUNT OF WEIGHT}}

    Gaining or losing a significant amount of weight can cause irregular periods. Being underweight, whether from dieting or illness can also cause irregular period.

    {{5. PELVIC INFLAMMATORY DISEASE}}

    Pelvic Inflammatory disease (PID) is a bacterial infection that can cause irregular periods. The bacteria causing PID can be gotten through sex, abortion or childbirth.

    {{6. POLYCYSTIC OVARY SYNDROME (PCOS)}}

    PCOS is a medical condition that causes cysts to form on ovaries, which can prevent eggs from maturing, and so ovulation may not take place consistently. Women with PCOS usually have a history of irregular periods.

  • Zika virus: WHO rejects call to move Rio Olympics

    {Public health agency says cancelling or moving the Olympic Games will “not significantly alter the spread of the virus”.}

    The World Health Organization has rejected calls to cancel or postpone the Olympic Games in Rio de Janeiro over the Zika virus.

    It said that “cancelling or changing the location of the 2016 Olympics will not significantly alter the international spread of the virus”.

    On Friday, 150 medical experts, academics and scientists sent an open letter to the UN agency saying the Games could speed up the spread of mosquito-borne disease.

    But the WHO said in a statement on Saturday that “based on the current assessment … there is no public health justification for postponing or cancelling the games”.

    “WHO will continue to monitor the situation and update our advice as necessary,” it added.

    Zika infection in pregnant women has been shown to be a cause of the birth defect microcephaly and other serious brain abnormalities in babies.

    The agency, which is giving public health advice to Brazil, said pregnant women should stay away from areas with ongoing Zika virus transmissions.

    “This includes Rio de Janeiro. Pregnant women’s sex partners returning from areas with circulating virus should be counselled to practise safer sex or abstain throughout the pregnancy,” WHO said.

    Brazil is one of almost 60 countries and territories which to-date report continuing transmission of Zika by mosquitoes.

    Health experts told Al Jazeera that the risk of catching the virus in Rio de Janeiro during the Olympics was lower than in many other parts of the Americas.

    Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine, agreed with the WHO that there was no public health reason to cancel or delay this summer’s Games.

    “The Olympics will be held in August, the coldest month of the year in Rio de Janeiro, when the mosquito numbers will be at their lowest,” Hotez said.

    “This virus really raged through a year ago and a significant percentage of the population has already been immunised, so that will further reduce transmission. And the Brazilians have been preparing for the Olympics by aggressively applying insecticides to the area around Rio.”

    Hotez acknowledged there was some risk but he maintained it was lower than elsewhere.

    “It will be far lower than in many other parts of the Western hemisphere, certainly compared to Central America or the Caribbean or even the US Gulf coast. Rio de Janeiro may even be one of the safer places,” he said.

    “For all these reasons i do not see a compelling reason to cancel the Games at this point.”

    The tropical disease expert was backed up by Tom Frieden, director of the US Centers for Disease Control and Prevention, who also said there was no health reason to cancel or delay the Games.

    {{‘Infection risk too high’
    }}

    Their assessment runs counter to the public letter posted online by the group of leading public health experts, many of them bioethicists, who said the risk of infection from the virus was too high.

    The letter was sent to Dr Margaret Chan, director-general of the World Health Organization, and urged that the Games be moved to another location or delayed.

    “An unnecessary risk is posed when 500,000 foreign tourists from all countries attend the Games, potentially acquire that strain, and return home to places where it can become endemic,” the letter said.

    Professor Arthur Caplan, director of the division of medical ethics at New York University School of Medicine and one of four who authored the letter, said he was sceptical Brazil had the resources to protect the public and was equally skeptical of “general assurances” from public health officials.

    The letter called on the WHO to convene an independent group to advise it and the International Olympic Committee.

    “I believe in informed consent,” Caplan said in an interview. “Let’s have an independent set of scientists look at this and let everyone hear the arguments.”

    The connection between Zika and microcephaly first came to light last fall in Brazil, which has confirmed more than 1,400 cases of microcephaly.

    A recent editorial in The Lancet Infectious Diseases journal noted that the Zika outbreak has been concentrated in northeastern Brazil, away from Rio.

  • Shocking: Experts reveal you can get pregnant without really having sex

    {If you think you know so much about conception, you might be in for a shocker. According to experts, you can get pregnant without even having intercourse. Wow.}

    Daily Mail asked several doctors to reveal the truth and bust the myths around conception and this shocking revelation was made.

    While we are probably think you need to have intercourse to be able to get pregnant, experts revealed to Daily Mail that ‘dry humping’ (a man and a woman grinding against each other without penetration) can get a woman pregnant. The experts also revealed that dry humping even when wearing underwear might still get a woman pregnant.

    How possible is that really? According to the experts, whether you have penetrative sex or not, there is always a risk of pregnancy if semen comes in contact with the vagina.

    So how can one get pregnant from dry humping even when with underwear? The experts revealed to Daily Mail that though this is rare, a woman can get pregnant from dry humping if the semen from the man soaks the woman’s underwear.

    Learned a lot today. Hope you did too?

  • Tanzania:Dar pulls off first heart bypass

    {The first ever heart bypass surgery in the East African Region has been conducted in Tanzania, courtesy of Jakaya Kikwete Cardiac Institute (JKCI) and a team of doctors from a leading Indian (New Delhi-based) BLK Super Specialty Hospital – a blessing in disguise for 18 patients battling cardiac complications.}

    According to a cardiologist at the JKCI, Dr Bashir Nyangasa, heart by-pass surgeries allow doctors to operate on the heart of a patient as it beats, unlike the standard one where doctors are forced to stop the patient’s heart until the surgery is completed.

    Before the new technology for treating people with heart complications, the JKCI used to conduct surgery by using a heart lung machine that forces cardiologists to stop patients from breathing until the process is completed.

    The visiting team and doctors from JKCI started offering by-pass surgery at the country’s leading cardiac centre in Dar es Salaam yesterday — and the two-day joint exercise is expected to be accomplished today, according to Head of the Cardiology Unit at the JKCI, Dr Peter Kisenge. Dr Kisenge told a news conference in Dar es Salaam yesterday that within two days, his institute would help the country to save 180m/-, which would have been spent by 18 patients if they opted to travel outside the country for treatment.

    “Performing a heart by-pass surgery costs 27m/- for a single patient abroad and if a patient decides to undergo such surgery in Tanzania, he/she will have to pay between 8m/- and 10m/-,’’ he said. Instead of sawing the breast-bone apart, surgeons can now simply bore two holes through it and put the by-pass in place. The entire operation lasts about 60 minutes and the patient can be discharged on the following day.

    The Executive Director of JKCI, Professor Mohammed Janabi, said that as of yesterday, about 12 patients with heart ailment had been operated and that they were responding to treatment well. The pilot exercise is targeting 18 patients, according to him.

    At the same time, JKCI and BLK Super Speciality Hospital signed a Memorandum of Understanding (MoU) for a partnership to share the vast experience across specialties and to build healthcare capacities locally.

    To achieve this, the New Delhi-based hospital intends to provide training to doctors from Tanzania in the Indian capital and regularly send teams of eminent doctors from India to Tanzania to work with a team of cardiologists at JKCI as well as perform complicated surgeries.

    “Technically, we are far beyond other countries in the provision of health care and we have been providing at least 3,000 open heart surgeries a year. Therefore, we are optimistic that the Tanzanian doctors will be able to learn more from us as we will similarly be able to learn as well from them through this partnership,’’ said the Chairman and Head of Cardiology Heart Centre at BLK Hospital, Dr Subhash Chandra.

    According to Dr Kisenge, for the third time, specialists from both countries continued performing Balloon Mitral Valvotomy (BMV). Besides the BMV, both teams performed interventional procedures at JKCI in October last year.

    All the procedures were performed in partnership, as part of an effort for JKCI and BLK Super Specialty Hospital to work together to build capacities in cardiology in Tanzania. BLK Super Specialty Hospital has so far expressed commitment to work in partnership with hospitals across Africa to share its vast experience across specialties to build healthcare capacities locally.