Android : Custom CursorAdapter won't update after deleting rows in list view

After I click delete button, nothing happens. But when I re-enter my app, deleting gets done. The problem is, I don't know where to call restartLoader() to requery the cursor, so that it updates my listview. here's the code:

class WordsListCursorAdapter extends CursorAdapter {

private Context mContext;

public WordsListCursorAdapter(Context context, Cursor c, boolean autoRequery) {
    super(context, c, autoRequery);
    mContext = context;
}

@Override
public void bindView(View view, Context context, final Cursor cursor) {
    TextView theWord = (TextView) view.findViewById(R.id.list_item_theword);
    TextView translatedWord = (TextView) view.findViewById(R.id.list_item_translated);
    ImageButton deleteButton = (ImageButton) view.findViewById(R.id.deleteButton);

    //final int itemId = cursor.getColumnIndex(DBContract.WordTable._ID);

    deleteButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            new SQLiteCursorLoader(mContext).delete(DatabaseHelper.getInstance(mContext), 
                    DBContract.WordTable.TABLE_NAME, null, null);
            notifyDataSetChanged();
        }
    });

    theWord.setText(cursor.getString(cursor.getColumnIndexOrThrow(DBContract.WordTable.THEWORD_COLUMN)));
    translatedWord.setText(cursor.getString(cursor.getColumnIndexOrThrow(DBContract.WordTable.TRANSLATED_COLUMN)));
}

@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
    LayoutInflater inflater = LayoutInflater.from(context);           // ? 
    return inflater.inflate(R.layout.words_list_item, parent, false);}}

---

public class WordsListFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor>{

private WordsListCursorAdapter cursorAdapter;
private ListView listView;
private SQLiteCursorLoader cursorLoader;

private final static int URL_WORDS_LOADER = 0;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_words_list, container, false);
    listView = (ListView) rootView.findViewById(android.R.id.list);

    cursorAdapter = new WordsListCursorAdapter(getActivity(), null, true);

    listView.setEmptyView(rootView.findViewById(android.R.id.empty));
    listView.setAdapter(cursorAdapter); 

    getLoaderManager().initLoader(URL_WORDS_LOADER, null, this);
    return rootView;
}


@Override
public Loader<Cursor> onCreateLoader(int loaderID, Bundle bundle) {
    cursorLoader = new SQLiteCursorLoader(getActivity(), DatabaseHelper.getInstance(getActivity()),
            DBContract.WordTable.TABLE_NAME, null, null, null, null, null, null);
    return cursorLoader;
}


@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    cursorAdapter.changeCursor(cursor);
}

@Override
public void onLoaderReset(Loader<Cursor> loader) {
    cursorAdapter.changeCursor(null);
}

}