Doctor insights on:
Environmental Factor Contribute
Prenatal factors: Include: a low folate (folic acid) level at the time of conception, drugs or alcohol from 3 weeks' conceptional age-delivery, maternal "flu"/viral illness with fever for a week, maternal obesity ;/or diabetes, advanced maternal age ; advanced paternal age if mother is young. These epigenetic factors alter function but not structure or sequence of fetal genes ; increase the risk of ASD in offspring. ...Read moreSee 1 more doctor answer
Work together: Over a very short period of time the incidence of autism has increased so significantly that genetics alone cannot be the explanation. Environmental influence on genetically susceptible individuals can explain the increase. There are thousands of subtle genetic differences that may only present clinically under certain environmental influences. Decreasing negative environmental exposures is key. ...Read more
Carcinogens: Known carcinogens include alcohol, tobacco, poorly-preserved meats, high-fat diets, ionizing radiation, asbestos, benzidine, etc. In addition, there are many chemicals that have been implicated yet not definitively proven to cause cancer. Looking at it from an epidemiological perspective, cancers that were very rare only 100 years ago are now quite common: cancer is a byproduct of our modern world. ...Read moreSee 1 more doctor answer
Which stage in human fertilisation/conception/pregnancy period does susceptibility to environmental factors that may contribute/cause defects start?
Before conception: The woman is born with all the eggs she will ever have and they mature over her lifetime until either released or lost. All exposure to chemicals/radiation/illnesses during a woman's life impact the egg quality. Once released to conception, the environmental influences on outcome are continuous. Some are time specific (thalidomide-5-7 wks) some are continuous (alcohol). ...Read more
More complicated: Adhd is considered a neurodevelopmental/neurobehavioral disorder. This implies some inherent neurologic abnormalities that are genetic but environment can have a large influence. Poor sleep, dysfunctional family dynamics, poor diet, lack of physical activity and overuse of electronics will exacerbate. In some children addressing these factors may be all that is needed while others may need meds. ...Read moreSee 2 more doctor answers
Maybe non-MS reasons: It is important to look carefully for non-ms factors contributing to fatigue. The list may include poor sleep quality, mood disorder, additive medication side effects, abnormal blood chemistries, hormone imbalance, anemia. Fatigue as exhaustion versus excessive sleepiness must be distinguished. Fatigue with walking may be a specific concern. It is important to see what on the list is treatable. ...Read moreSee 2 more doctor answers
Cancer and treatment: The greek words kakos="bad things", & hexus="state of being. Cancer cachexia is characterized by diminished nutrient intake and progressive tissue depletion, both of which lead to weight loss. Cytokine activation and tumor-derived cachexia-inducing substances are thought to be the causes. In some cases, cancer treatment may also contribute to loss of lean body mass in patients with advanced cancer. ...Read moreSee 1 more doctor answer
Genetics and weight: Most girls have their first period at a age similar the their mothers. Overweight females tend to have an earlier onset of puberty. In most girls having precocious puberty, no cause is identified, but evaluation by a pediatric endocrinologist is needed. The genes and receptors controlling the onset of puberty are being studied. We don't have a final answer yet. ...Read more
Environmental danger: This question can not be fully addressed here. The potential exposures in the environment can potentially come from food, medications, air and/or water pollution, animals, insects, contact with others as well as many other sources. Although one can not avoid all exposures to environmental health risks knowing what can harm you is a good place to begin. ...Read more
Of course!: Just think of the difference you might feel taking in a big breath of fresh mountain air, versus inhaling smog in the middle of an industrial complex. ...Read more
Examples: Changes in barometric pressures or weather may provoke migraine headaches. Multiple sclerosis may be triggered by low contact with sun and secondary low Vitamin D. Presence of parasitic infections may protect against autoimmune disorders.
It goes on and on, but the above gives an idea of the complexity. ...Read more
Disease hereditary?: Which disease are you referring to? Please be specific. Many diseases are heretable, and yet may depend upon environmental factors to actually be expressed or manifested. ...Read more
What are the impacts of chemotherapy of the following factor : economic, social, cultural, environmental?
Chemotherapy: Each of those questions questions is bet answered in a review article or dissertation not in 400 characters or less. ...Read more