Can Cell Phone Use Cause Brain Cancer?

May 31st, 2011 by DoctorZaidi

On May 31, 2011, World Health Organization (WHO) announced that the radiation exposure from the use of cell phone may cause glioma, a type of brain cancer.

Over the years, there have been concerns about the use of cell phones causing brain cancer. The new evidence comes from an independent panel of 31 scientists from 14 countries thru WHO’s International Agency for Research on Cancer (IARC).

These scientists reviewed exposure data, studies of cancer in humans and experimental animal models, and other relevant data, and concluded that cell phone use may in deed increase the risk of brain cancer.

The multibillion dollars cell phone industry obviously does not like this kind of study.

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Optimal Treatment of Hypothyroidism

May 6th, 2011 by DoctorZaidi

The Old Approach to Treat Hypothyroidism?

Most physicians use only T4 (Levothyroxine, L. thyroxine, Synthroid, Levoxyl or Levothroid)  to treat an under-active thyroid state, which is also called Hypothyroidism. Why? Because that’s what they have been told to do.

 The rationale given for this old, sub-optimal treatment is that some of this T4 gets converted into T3 inside the body. However, a large number of  patients continue to have symptoms of hypothyroidism despite taking their T4 medicine. This old approach comes from the era when a blood test for T3 was not widely available.

What is the Optimal Treatment of Hypothyroidism?

A normal thyroid gland produces two types of thyroid hormones, Levothyroxine (or T4) and triiodothyronine (or T3). Then, some of T4 gets converted into T3.

Over the last 10-15 years, some endocrinologists, including myself, started to include T3 level in our patients, in addition to T4 and TSH. We were amazed to find that many patients are relatively low in T3 when they receive T4 alone as their thyroid replacement. Therefore, it is plausible to conclude that conversion from T4 to T3 varies from patient to patient and does not take place as efficiently as was presumed in the past.

 Therefore, the most scientific and physiological approach is to give both T4 and T3 to a hypothyroid patient. Check T4 as well as T3 in addition to TSH levels in the blood in order to monitor the adequacy of thyroid hormone replacement.

 T3 is also known as liothyronine.

 Drugs to Treat Hypothyroidism

 Brand name             Generic Name

 Armour Thyroid      Levothyroxine (T4) + Triiodothyronine (T3)

 Synthroid                   Levothyroxine (T4)

 Levoxyl                      Levothyroxine (T4)

 Cytomel                       Liothyronine (T3)